Opebating attachment fob computing-machines



S. B. WILSON.

OPERATING ATTACHMENT FOR COMPUTING MACHINES.

APPUCATION FILED MAYH, 191s.

' 1,314,844- Patented Sept. 2, 1919.

Inv e vii m" UNITED STATES PATENT OFFICE.

SAMUEL B. WILSON, 01's LEXINGTON, KENTUCKY.

OPERATING ATTACHMENT FORCOMI'UTING-MAGHINES;

Application filed May 11, 1916. Serial No. 96,825.

such .as adding machines, by which the recording of numerals may be set,by action ofthe footupon a treadle, in operative relation tomechanismattached to the operat- Jever of the machine.

he principal object of my invention is to provide an attaohmentof thecharacter describedwhich will efiectively actuate-the machine lever bypressure :brought upon a suitable treadle, without undue wear on thepants of the machine, or danger of the machine :being marred, andwithout liability of itsside walls, adjacent the operating 'lever,becoming :broken if made .of glass, as is now in common practice.

"Othercobjects of my invention are to provide an attachment forcomputing machines which is inexpensive to manufacture, simple and-durable,,and one which can be quickly adjusted to various types ofmachine stands.

Eunther objects of my invention will lappear in. thetollowing detaileddescription taken in connection with the accompanying drawing, andforming a part of the specification, and in which drawing:

Figure '1 is a perspective view of a computin machine mounted on asuitable stand, and s owing an attachment constructed according to myinvention in operative relation thereto.

Fig. 2 is an enlarged rear elevation of the operating lever of :acomputing machine, showing :a coupling in operative relation thereto. I

Fi ,3 is an enlarged sectional view on the li he .3..-3 of Fig. 2.

Fig. 4 is a perspective view of said coup g- Fig. .5 is a view partly in.xplanland partly section showing the'treadle and its mount in i Tig. 6is a fragmentary perspective view of a portion ofthe operating lever,such as is now in common use.

In the drawing where similar characters rarer a. similar partsthroughout the dlifier Specification of Letters Patent.

Patented Scpt. 2, i919.

ent views, A designates generally a computln machine including anoperating lever. C a stand therefor including uprlghts D; E .a treadle;F an adjustable support therefors-G a'coupling detachably .se-

cured to lever 13,; and H adevice, 51 .1 as

a chain, for im arting movement of treadle Etoucoupling i in the.example shown, a .com u'ting machine A is of that type provi ed with adetachableoperating lever B having a handlefl and a stem" 8, the axis ofwhlch is .coincident with the axis of oscillation .of the lever, thisstem ,8 extending through :a glass wall 9, forminglthe side wall ofthecomputingmachine. yer is used in the operation of the computmgmachine, after suitable keys 10 have been depressed, for the purpose ofsettin the machine according to the. keys depresse The stand C may be ofany suitable type in the example shown, being provided with.

caps 11 receiving the extensions 12 at the lower portion of themachinalasisnow Q 11 mon practice. The uprights D servin as legs .of themachine, are securely braced .by cross members 13-and 14.

t is understood that this ,le- 1 Referring now to the treadle E, it maycomprise a main body portion or board 15 to which is secured, at itslateral margins, arms. 16 and 17, said .arms provided with sleeves -18to fit about a shaft 19, which in turn is supported by suitable brackets20 adjustalbly connected withthe uprights 1D. In the example shown,,these brackets comprise a lJ -shapedbody :PQrtion 21, .one stem,

that designated 22 of each bracket being longer than the other stem 23,said body portion fittin about .the uprights D; and, a bolt 24 and a nut25 extending through the stems 22 and 23 in a manner that the bodyportion 21 maybe clamped on said uprights. The shaft '19 has engagementwith and is supported by the stems 22 of said brackets, and collars 26having .set screws27 may be provided about :the shaft 19-.to eventlongitudinal movement thereof withrespect to the brackets. The sleeves18may also be prorided with setscrews 28, enabling the treadle E to beadjustably secured to shaft 19. It is to be observed that, by providinga treadle E with adjustable support 5F,- said treadle may be adapted tovarious makes of stands C, and the treadle may be adjusted tothataposition most con- Wenient for the operator-by merely releaw iing-set screws 28 and moving the arms with the. body portionlongitudinally of shaft 19, .until in the position desiredfwhereupon theset screws '28 may, hetu'rned tight; Theadjustable support F may also bemoved longitudinally-10f the uprights D so that the 5 venient for use bythe-operator. it

treadle'Eis positioned in a plane most con- As to. the coupling G, itcomprises a main,

body 'portion"'29'; including "arms 30 and 31 disposed at "substantiallyfa right'angle', and anjarcua'te connecti'on' '32 joining the arms 30and "SIat'their ends opposite-from the i ea and, meansee for de- -29 tothe lever B.

, 'sion'embodiesa'groove37 intoijwhieh the rib tachably' securing saidmain -body portion While lever B may beef-any suitable shape, it isprovided with a longitudinally 'grib 34 extending from the name 7 'toadisk-likeenlargement'35 coaxial with 'theaxisof operation of saidlever,in the example shown. The arm 'ofbody portion 29 is providedwithtadep'ression 36 in its face formed to'the contour of thei outer andside faces of lever B';** That is, said depres- 734E may extend; arecess 38 for receiving the- "disk-like enlargement. 85; and, anenlarged groove 39 open'fto greove'37 intowhi'ch the main body portionof lever- B fits, andsothat the rear face of-said lever .i's' flush withthe rearface ofbody portion 29. The means'33 may comprise a bar 4:0pivotally connected I *to body'29 adjacent; one margin of'thedepression36, as by screw -41 and detac'hafbly secured adjacent the other'm'arginof said depression, as by screw 4:2,so that, by re- 7' moving'one ofsaid screws, the bar 'may-be swung to the position shown in Fig. 4enabling the lever'B to be placed into operative relation with thecoupling, after which the 7' barAO is swung'to extend across'therearface 0f the lever, and is secured in place by the screw. By thiscconstructionp the coupling is'fheld against imovement longitudinally[of the; lever and I against swinging action, so that there is nodangerof it engaging'the glass wall 9 ofthe computingmachine. It isepreferredto' form the arms30 and 31, and the connection 82 of one integral mass,at perforation 43 beingprovidedatthe end portion of arm 31 opposite fromits'juncture with arm 30- to receive a suitable "link 44 with which the"device G has :con'nection. The 'arm "31 not only serves a means whereby;the device H is =operatively con- "gnected with the :coupling, butfalsogives weightto the body '29, laterally of its pivot "point'fand actinginconjunction withthe connection 32" facilitates oscillation of 1 thecoupling and lever. The arcuate connection '32'al'sopresents'a roundedperiphery, so that if it isdesired to operate thejlever B by r-graspingthehanfdle 7 instead of operating the treadlej E, thereis-nolobstruction or proflexible, "is trained from its conn'ectionfwithstruction whenv the machine'isn'ot in use; The operationpf theattachmentisas folg Having truding part which would belikely t-o eIi-w; I V gagethe-sleeve of the operator or otherwlse interfere with manual operationof the lever, the operator usinghis hand instead oftfoot 7 action; 7 v170 Withregard to the device H,-,it mayrconsist of a chain detachablysecured to 'link ll *andsltoan extension 4 5-ofv arm 17, said armprovided with a perforation 46 into which i the device H extends:-Thedeviee-H,bein

treadle E, "exteriorl of the cross piece 1'4,

and 'interiorly of cross'pjiec'e l3, whereit is out of theway and doesnot act as an 019- lowsz a V a been adjusted so that thetr'e'adle Eis'positioned in the most convenientplane l computing machine isfacilitated In prac- 'ticelit-has been found that an operator becomeszso accustomed 'to utilizing'aitreadle i that he subconsciouslyactuates {the treadle after the desired keys havebeendepressed "and isinreadines'stoidepress the-neXt-com-V. V

bination of keys withoufmoving.the fingers *from above the key-board" 1There] is noidangerof the machine becoming marred-, nor the, side wallQdam'aged inasmuch as the cou pling G isrigidly'secured to'the'le'ver'B;

Adjustment i's alsopossible to adapt the at 'ta'chmentto"various;types-"and "sizes {of stands, as is obvious 'jfrom an;inspection of the drawings-ff" 5 1 7 Changes in details may be;made="without 1 10, departing from the'" spirit or scope of my iii--vention;fbut, f. 1

Iclaim: r

1. 'In an attachment-for a machine, thecombination with an operating itlever for the machine, of segmental con; pling frame havingafglongitudinal" seat in one radial portion thereof adapted tojre- 4ceive saidleverlongitudinallyf'therein, securing straps detachably-attached Ltosaid radial portion and adapted to said seat and engagesaidlever for retaini-iig the "lever in the seat, saidrecessshaped to snuglyfit" said leverto reventliplay of 'the lever with respect to thecoupling, a treadle, and a connection between-said' -treadle and" theouter portion of said segmental coupling. 7 frame. a i

2;;In an attachmentjfor acomputing e i s 7; chine, thecombination with ian operatingl lever for the machine, of a segmental coupling frame havina longitudinal seat in one radial portion t ereof adapted to receivesaidlever longitudinally therein, said seat being shaped to conform tothe configuration of the inner side of said lever to prevent movement ofthe lever independently of the segmental frame, securing strapsdetachably attached to said radial portions and 10 adapted to clamp saidseat and engage said lever for retaining the lever in the seat; atreadle pivotally supported forwardly of the pivot of said lever andextendi rearwardly, and a flexible connection etween the outer portionof said segmental coupling frame and the free end of said treadle, theconnection between said flexible member and said treadle beingsubstantially directly downward of the pivot of said lever.

SAMUEL B. WILSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C. r

